164017180

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{20051}}^1$

素因数の和:20469

約数の個数: 24

約数和(自身を含む): 345295440

約数和(自身を除く): 181278260

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 20051, 40102, 80204, 100255, 200510, 401020, 8200859, 16401718, 32803436, 41004295, 82008590, 164017180]

約数ペア:

[(1, 164017180), (2, 82008590), (4, 41004295), (5, 32803436), (10, 16401718), (20, 8200859), (409, 401020), (818, 200510), (1636, 100255), (2045, 80204), (4090, 40102), (8180, 20051)]